陕西省县域土地利用多功能性时空分异及影响因素研究

RESEARCH ON SPATIAL TEMPORAL DIFFERENTIATION AND INFLUENCING FACTORS OF LAND USE MULTI FUNCTIONALITY IN COUNTY AREAS of SHAANXI PROVINCE

关键词:  土地利用多功能性时空分异影响因素地理探测器陕西省

Key words:  land use multi functionality  temporal spatial difference  influencing factors  geographical detector  Shaanxi province

摘要:

［目的］土地利用多功能性是土地利用可持续发展的重要途径，通过对陕西省土地利用多功能性时空分异与影响因素的研究，探讨不同县区时空上的变化与作用关系。［方法］构建“社会—经济—生态”可持续发展三维指标体系，同时确定了契合研究区背景的指标阈值，分析了2000—2015年陕西省土地利用多功能性时空分异，并借助地理探测器探究了2015年区域土地利用多功能性的影响因素。［结果］（1）2000—2015年陕西省县区土地利用单项功能及总功能值逐步提高、但动态变化幅度不大、单一功能向多功能缓慢转变，仍以生态功能为主； （2）陕西省生态功能对土地利用总功能的影响最强为0308，人口密度、土地垦殖率、封山育林总面积分别为社会、经济、生态功能的主要指标，且各层级因素两两交互后协同关系显著。［结论］土地利用多功能性研究为维护社会、发展经济、保护生态提供有力的科学依据，是促进区域土地可持续发展有效手段之一。

Abstract:

Mufti function of land use is an important way for sustainable development of land use. This research is intended to explore the spatial temporal change and function relationship of different counties and districts through the study of spatial temporal differentiation and influencing factors of land use mufti function in Shaanxi province. Based on the construction of the three dimensional index system of social economic ecological sustainable development and the determination of the index threshold that fits the background of the study area, this research analyzed the spatial and temporal differentiation of the mufti function of land use in Shaanxi province from 2000 to 2015, and explored the influencing factors of the mufti function of regional land use in 2015 with the help of geographic detectors. From 2000 to 2015, the single function and the total function value of land use in Shaanxi counties and districts increased gradually, but the dynamic change was not large. Although the single function changed slowly to mufti function, the main function was ecological function. Shaanxi province′s ecological function had the strongest impact on the total land use function, which was 0.308. Population density, land reclamation rate and total area of closing hills for afforestation are the main indicators of social, economic and ecological functions, and the synergistic relationship between the two levels of factors was significant after interaction. The study of multi function of land use provides a strong scientific basis for maintaining society, developing economy and protecting ecology. It is one of the effective means to promote the sustainable use of regional land.